"""Hello, world"""

__author__ = "wusong"

import sys


def test():
    args = sys.argv
    print(args)
    if len(args) == 1:
        print("Hello, world !")
    elif len(args) == 2:
        print("Hello, %s !" % args[1])
    else:
        print("Too many arguments !")


if __name__ == '__main__':
    test()
